#include <iostream>
#include <string>
#include <sstream>
using namespace std;
 int main() {
std::string response;
std::string thisresponse = "";
bool _break = false;
int y = 100;
while (!_break) {
std::cout << "i" << "'" << "l" << "l" << " " << "r" << "e" << "p" << "e" << "a" << "t" << " " << "i" << "f" << " " << "y" << "o" << "u" << " " << "e" << "n" << "t" << "e" << "r" << " " << "5" << "0" << std::endl;
std::getline(std::cin, response);
int thisresponse;
std::istringstream ss(response);
 if(!(ss >> thisresponse)) {
std::cout << "Invalid input." << std::endl; 
 continue;
}

if ((thisresponse)  ==  ((y)  /  (2))) {
continue;

}

else {
break;

}

}

}
